Teenage Mutant Ninja Turtles: Season 4

1990 · 39 episodes · ★ 5.8

What Season 4 of Teenage Mutant Ninja Turtles

The Teenage Mutant Ninja Turtles continue living in the sewers of New York under the guidance of Splinter, the rat who was once Hamato Yoshi. This season, the Technodrome returns to Dimension X, and Shredder and Krang want to regain their edge. To do so, they send Rocksteady and Bebop to Earth, disguised as humans for a limited time. The villains seek energy, mutagens and inventions that will let them take control of the city. Facing them, the Turtles have April, who reports from the TV and alerts them whenever something stirs on the surface, along with their ninja training to stand up to every threat.

39episodes

Sep 10, 1990premiered

Dec 8, 1990final episode

14.5 hrtotal runtime

Season 4 Episodes

4x01 Plan Six From Outer Space
Sep 10, 1990 · 22 min
With the Technodrome in serious need for new equipment, Bebop and Rocksteady are sent to Earth, disguised in human form, to capture the Channel 6 building and return it to Dimension X.
Written by: Francis Moss, Ted Pedersen
4x02 Turtles of the Jungle
Sep 11, 1990 · 22 min
A professor's new ray-gun causes plants to go wild and his pet ape Jocko to become a giant rampaging monkey. By using the same ray-gun, Donatello is increased to Jocko's size so he can fight the giant ape and save April from him.
Written by: Carmela Ortiz, Antonio Ortiz
4x03 Michaelangelo Toys Around
Sep 12, 1990 · 22 min · ★ 6.2
While trying to see the new toys at the Toy Fair, Michaelangelo stumbles upon a plot to take over a noted toy company.
4x04 Peking Turtle
Sep 13, 1990 · 22 min · ★ 6.2
The Turtles must battle a reanimated Terracotta Army after Shredder steals an energy device shaped like a giant pearl, which is held and guarded by a Jade Dragon.
Starring: Tress MacNeille
4x05 Shredder's Mom
Sep 14, 1990 · 22 min · ★ 6.6
New York is in the middle of an induced heat wave caused by Shredder, who must battle the Turtles and deal with his mother, Miyoko Saki, at the same time.
Directed by: Rowby Goren
4x06 Four Turtles and a Baby
Sep 17, 1990 · 22 min
When General Tragg and his troops attack the Neutrino capital, the Neutrino leaders, Zenter and Gizzla, send their infant daughter Tribble through a portal to Earth, asking the Turtles to look after her, but Tribble causes big trouble for our heroes.
4x07 Turtlemaniac
Sep 18, 1990 · 22 min
An eccentric billionaire, Monroe Q. Flem, who is also a collector, wishes to collect every piece of TMNT memorabilia that he can get his evil hands on, including April and the Turtles themselves.
4x08 Rondo in New York
Sep 19, 1990 · 22 min
Shredder, Bebop, and Rocksteady are in town to steal a rare new mutagen created by Oswald Dren, a grad student. Some mutagen is accidentally spilled onto a reel of movie film causing monsters to come to life.
4x09 Planet of the Turtles
Sep 20, 1990 · 22 min
The Turtles must save the Earth from a massive energy drain and its Apocalyptic result by traveling to another dimension where turtles are the dominant species.
4x10 Name That Toon
Sep 21, 1990 · 22 min
A Technodrome computer disguised as an electronic keyboard ends up on Earth, and in the most unlikely of hands.
4x11 Menace, Maestro Please
Sep 28, 1990 · 22 min
The Turtles must contend with the "Phantom of the Floxy" while trying to hinder Shredder's latest plan to bring the Technodrome back to earth.
4x12 Superhero for a Day
Sep 25, 1990 · 22 min
Gadget Man comes out of retirement after 50 years, but is tricked by Shredder into fighting against the Turtles.
Written by: Francis Moss, Ted Pedersen · Starring: Peter Cullen
4x13 Back to the Egg
Sep 26, 1990 · 22 min
Krang hires a multi-dimentional ring-master who intends on making the Teenage Mutant Ninja Turtles part of his circus by using an anti-aging serum.
4x14 Son of Return of the Fly II
Sep 15, 1990 · 22 min
Vengeful Baxter Stockman and an A.I. computer return to Earth from a dimentional limbo and capture the Turtles while luring Shredder into their trap as well.
4x15 Raphael Knocks 'em Dead
Sep 15, 1990 · 22 min
Raphael must contend with a mobster named Pinky McFingers when he is kidnapped from a local comedy club.
Written by: Jack Mendelsohn
4x16 Bebop and Rocksteady Conquer the Universe
Sep 22, 1990 · 22 min
On their latest trip to Earth, Bebop and Rocksteady steal a machine that makes everyone scared of everything.
4x17 Raphael Meets His Match
Sep 22, 1990 · 22 min
Raphael wins a ticket to a costume party on MacDonald Crump's yacht and decides to go disguised as a Teenage Mutant Ninja Turtle.
Starring: Pat Musick
4x18 Slash the Evil Turtle from Dimension X
Sep 29, 1990 · 22 min
Bebop and Rocksteady use Krang's new Mutagen on Bebop's pet turtle Slash so he can do their housework for them. Slash runs away and is conned by an irritated entrepreneur into framing the TMNT.
4x19 Leonardo Lightens Up
Sep 29, 1990 · 22 min
A ray-gun makes Leonardo carefree and ignore his responsibilities. This leaves the Turtles defenseless and the city at the mercy of Maestro G Clef, a villain who destroys the city with music.
Written by: Dan DiStefano
4x20 Were-Rats from Channel 6
Oct 13, 1990 · 22 min
After many failed attempts from his rodent subjects to find food, the Rat King learns of an abandoned canister of mutagen lost in the sewers and claims it for himself.
4x21 Funny, They Shrunk Michaelangelo
Oct 13, 1990 · 22 min
While Michaelangelo is testing out a sailboard in the sewers he accidentally gets swept out into the city harbor.
4x22 The Big Zipp Attack
Oct 20, 1990 · 22 min
Krang sends Shredder, Bebop and Rocksteady to find Rigidium to repair the Technodrome. A meteorite lands containing a large egg. The egg hatches, revealing a Zipp, a cute little creature that begins to eat the Technodrome.
4x23 Donatello Makes Time
Oct 20, 1990 · 22 min
Professor Lloyd Cycloyd, a crazy scientist who escaped from an institution, accidentally discovers the Turtles' lair. He sees Donatello testing out one of his new inventions, a time stopper.
Starring: Jennifer Darling
4x24 Farewell, Lotus Blossum
Oct 27, 1990 · 22 min
While on their way to a movie, the Turtles rescue the Urn of Chakahachi from two thieves. The thieves pry off a pearl from the Urn before the Turtles get their hands on it.
4x25 Rebel Without a Fin
Oct 27, 1990 · 22 min
Dr. Polidorius creates a half-man half-fish named Ray. The Doctor has Ray plant explosives in certain parts of the sewer so that he can sink the city beneath the ocean.
Starring: Alan Oppenheimer
4x26 Rhino-Man
Nov 3, 1990 · 22 min
J. Gordon Hungerdunger, a Texas millionaire, is holding a best super-hero contest. The winner of the contest will receive the humongous Malaprop Diamond.
4x27 Michaelangelo Meets Bugman
Nov 3, 1990 · 22 min
Michaelangelo meets his favourite comic book hero after he saves a weakened Brick Bradley in the sewers, and then he and Bugman take on the evil Electrozapper together.
Written by: Dennis Marks
4x28 Poor Little Rich Turtle
Nov 10, 1990 · 22 min
Krang has come up with yet another brilliant plan to free the Technodrome. The evil alien sends Bebop and Rocksteady to kidnap Buffy Shellhammer, 15 year-old CEO of Shellhammer Chemicals.
4x29 What's Michaelangelo Good For?
Nov 10, 1990 · 23 min
The Turtles go along with Michaelangelo and his pet pigeon to the zoo so that Dr. Goodfellow can check the bird out.
Starring: Phylicia Rashād
4x30 The Dimension X Story
Sep 8, 1990 · 23 min
Disguised as humans, Rocksteady and Bebop are sent to attach special trans-dimensional thrusters to the Channel Six Building.
4x31 Donatello's Degree
Sep 8, 1990 · 23 min
Donatello gets an invitation to accept his degree personally from Professor Sopho at Sopho University. The only problem is that the invitation is addressed to a Miss Donna Tello.
Written by: Jack Mendelsohn
4x32 The Big Cufflink Caper
Sep 14, 1990 · 23 min
The Turtles, bored at the lack of action, decide to investigate when they hear that cufflinks are being stolen around the city.
4x33 Leonardo Versus Tempestra
Nov 17, 1990 · 23 min
The Turtles sneak into an arcade in the middle of the night to play video games. Leonardo gets hooked on a game called Tempestra's Revenge.
Written by: Misty Stewart-Taggart
4x34 Splinter Vanishes
Nov 24, 1990 · 23 min
Returning from another mission, the Turtles are shocked to discover their mentor has left the lair, leaving behind only a video taped message.
4x35 Raphael Drives 'em Wild
Nov 24, 1990 · 23 min
On his way home from getting pizza Raphael and a cab driver accidentally get exposed to rays from a Personality Transmogrifier.
4x36 Beyond the Donatello Nebula
Dec 1, 1990 · 23 min
Donatello has created a device to communicate with distant galaxies. While trying to communicate with the Turtle Nebula Donatello accidentally brings a spaceship to Earth.
Starring: Gregg Berger
4x37 Big Bug Blunder
Dec 1, 1990 · 23 min
A fly lands in the mutagen and it increases in size. Not being able to control it, Bebop and Rocksteady send the giant insect to Earth.
4x38 The Foot Soldiers Are Revolting
Dec 8, 1990 · 23 min
After Bebop and Rocksteady blow another assignment, Shredder fires them and decides to replace them with an intelligent Foot Soldier named Alpha One.
4x39 Unidentified Flying Leonardo Season Finale
Dec 8, 1990 · 23 min
UFO sightings at an upstate farm town known as High Falls, cause April to investigate. Splinter foresees danger clouding April's visit and sends Leonardo to chaperone.